DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dalitz plot analyses of J/ψπ+π-π0 , J/ψK+K-π0 , and J/ψ K s 0 K±π produced via e+e- annihilation with initial-state radiation

Journal Article · · Physical Review D
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less

Here, we study the processes e+e- → γ ISR J/ψ , where J/ψ → π +π-π0, J/ψ → K +K-π0 , and J / ψ → K$$0\atop{S}$$ K ± π ∓ using a data sample of 519 fb-1 recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e+e- collider at center-of-mass energies at and near the Υ (nS) (n = 2 , 3 , 4) resonances. We measure the ratio of branching fractions R1 = $$B(J/ψ →K^+K^- π^0)\atop{B(J/ψ →π^+π^- π^0)}$$ and R2= $$B(J/ψ →K^0_SK^±π^∓)\atop{B(J/ψ →π^+π^- π^0)}$$. We perform Dalitz plot analyses of the three J/ψ decay modes and measure fractions for resonances contributing to the decays. We also analyze the J/ψ → $π^+π^- π^0$ decay using the Veneziano model. We observe structures compatible with the presence of ρ (1450) in all three J/ψ decay modes and measure the relative branching fraction: R (p(1450)) = $$Bp(1450)→K^+K^-)\atop{B(p(1450)→π^+π^-)}$$ +0.307 ± 0.084 (stat) ± 0.082 (sys).

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Organization:
BaBar Collaboration
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1430678
Journal Information:
Physical Review D, Journal Name: Physical Review D Journal Issue: 7 Vol. 95; ISSN PRVDAQ; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (22)

J/Ψ decays journal March 1989
Observation and quantum numbers determination of the E(1420) meson in π−p interactions at 3.95 GeV/c journal June 1980
The EvtGen particle decay simulation package journal April 2001
The BABAR detector
  • Aubert, B.; Bazan, A.; Boucham, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, Issue 1 https://doi.org/10.1016/S0168-9002(01)02012-5
journal February 2002
Geant4—a simulation toolkit
  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8
journal July 2003
Time-integrated luminosity recorded by the BABARdetector at the PEP-IIe+e- collider
  • Lees, J. P.; Poireau, V.; Tisserand, V.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 726 https://doi.org/10.1016/j.nima.2013.04.029
journal October 2013
The BaBar detector: Upgrades, operation and performance
  • Aubert, B.; Barate, R.; Boutigny, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 729 https://doi.org/10.1016/j.nima.2013.05.107
journal November 2013
Precision measurement of the branching fractions of J/ψ→π+π−π0 and ψ′→π+π−π0 journal April 2012
Application of the Veneziano model to the analysis of three pion charmonium decays journal October 2014
Review of Particle Physics journal October 2016
Three-Pion Decays of Unstable Particles journal March 1964
Mesonic decays of the ψ ( 3095 ) journal April 1977
Partial wave analyses of J / ψ → γ K + K − and γ K S 0 K S 0 journal September 2003
Measurement of the branching fraction of J / ψ → π + π − π 0 journal July 2004
X ( 1576 ) and the final state interaction effect journal April 2007
Possible explanation of a broad 1 -- resonant structure around 1.5 GeV journal November 2007
Search for the Z ( 4430 ) − at BABAR journal June 2009
Role of P -wave inelasticity in J / ψ → π + π − π 0 journal November 2010
Channel likelihood: An extension of maximum likelihood for multibody final states journal May 1974
Measurement of ψ ( 3097 ) and ψ ′ ( 3686 ) Decays into Selected Hadronic Modes journal September 1983
Observation of a Broad 1 -- Resonant Structure around 1.5     GeV / c 2 in the K + K − Mass Spectrum in J / ψ → K + K − π 0 journal October 2006
The Physics of Glueballs journal January 2009

Cited By (2)

Partial-wave analysis of J / ψ → K + K − π 0 journal August 2019
Partial-wave analysis of $J / ψ → K^+ K^− π^0$ text January 2019